You know how some days it doesn’t pay to get out of bed? The new Scorpion lifters went in without a hitch. They are quiet too. I did have the shaft in its correct orientation for oiling. However….. I now have a stripped rocker shaft bolt hole. One of the ones that feeds oil. The aluminum is stripped out along with about 70% of the helicoil. I have 4 good threads left at the bottom and have studs, as opposed to bolts, on order. I am thinking maybe JB Weld instead of Locktite.